Monel 400 Forged Round Bar ASTM B164 UNS N04400 10-300mm Diameter Seawater Corrosion Resistant for Marine Engineering

Monel 400 Forged Round Bar – ASTM B164 UNS N04400

Our Monel 400 forged round bars are manufactured to ASTM B164 and ASME SB-164 standards, delivering outstanding performance in demanding marine and chemical processing environments. Monel 400 (UNS N04400) is a nickel-copper alloy offering a unique combination of high strength, excellent corrosion resistance, and good weldability.

Key Features

• Superior Seawater Corrosion Resistance: Monel 400 exhibits exceptional resistance to seawater and steam at high temperatures, making it the preferred choice for marine engineering applications including propeller shafts, pump shafts, and offshore platform structural components.
• Broad Size Range: Available in diameters from 10mm to 300mm with standard lengths up to 6000mm. Custom diameters and lengths available upon request.
• Multiple Delivery Conditions: Supplied in hot forged, annealed, or cold worked conditions to meet different application requirements. Annealed condition offers optimal machinability with tensile strength ≥ 550 MPa.
• Excellent Mechanical Properties: Yield strength ≥ 240 MPa, elongation ≥ 35%, and hardness ≤ 28 HRC ensure reliable performance under mechanical stress and thermal cycling.
• Non-Magnetic and Spark-Resistant: Suitable for applications requiring non-magnetic properties and resistance to sparking in hazardous environments.

Chemical Composition (Typical)

Applications

• Marine propeller shafts and pump shafts
• Offshore oil and gas platform components
• Seawater valve stems and fasteners
• Chemical processing equipment
• Heat exchanger components in saltwater service
• Hydrofluoric acid alkylation units

Quality Assurance

Each batch is accompanied by a mill test certificate (MTC) per EN 10204 3.1, including chemical analysis, mechanical testing, and dimensional inspection. Third-party inspection by SGS, BV, or TÜV is available upon request. ISO 9001:2015 certified manufacturing ensures consistent quality throughout production.

Contact us today for a competitive quotation and technical consultation on your Monel 400 forged round bar requirements.